Ellen the Golbat

Ellen was a Golbat owned by Manic in Manic's Derpy Emerald. She was captured as a Zubat in Granite Cave, boxed, and evolved into Golbat sometime later, but never joined the team. Audrey does at one point refer to her as Elena, but it is unknown if this is a nickname, mistake, or simply Audrey not knowing her well.